My recollection is that unlimited text plans became the standard around 2008ish, well before iMessage came out. iMessage "won" because it was the default for i

My recollection is that unlimited text plans became the standard around 2008ish, well before iMessage came out. iMessage "won" because it was the default for iPhone users in the US. Similarly, Whatsapp is the default nowhere and I don't know anyone who uses it, but that might be a generational thing. Whatsapp has always struck me as common in Europe, but rare in the US. We just use text and FB Messenger.